net.h

   1 #ifndef QEMU_NET_H
   2 #define QEMU_NET_H
   3
   4 #include "qemu-common.h"
   5
   6 /* VLANs support */
   7
   8 typedef struct VLANClientState VLANClientState;
   9
  10 typedef int (NetCanReceive)(VLANClientState *);
  11 typedef ssize_t (NetReceive)(VLANClientState *, const uint8_t *, size_t);
  12 typedef ssize_t (NetReceiveIOV)(VLANClientState *, const struct iovec *, int);
  13 typedef void (NetCleanup) (VLANClientState *);
  14 typedef void (LinkStatusChanged)(VLANClientState *);
  15 typedef void (SetOffload)(VLANClientState *, int, int, int, int);
  16
  17 struct VLANClientState {
  18     NetReceive *receive;
  19     NetReceive *receive_raw;
  20     NetReceiveIOV *receive_iov;
  21     /* Packets may still be sent if this returns zero.  It's used to
  22        rate-limit the slirp code.  */
  23     NetCanReceive *can_receive;
  24     NetCleanup *cleanup;
  25     LinkStatusChanged *link_status_changed;
  26     int link_down;
  27     SetOffload *set_offload;
  28     void *opaque;
  29     struct VLANClientState *next;
  30     struct VLANState *vlan;
  31     char *model;
  32     char *name;
  33     char info_str[256];
  34 };
  35
  36 typedef struct VLANPacket VLANPacket;
  37
  38 typedef void (NetPacketSent) (VLANClientState *, ssize_t);
  39
  40 struct VLANPacket {
  41     struct VLANPacket *next;
  42     VLANClientState *sender;
  43     int size;
  44     int raw;
  45     NetPacketSent *sent_cb;
  46     uint8_t data[0];
  47 };
  48
  49 struct VLANState {
  50     int id;
  51     VLANClientState *first_client;
  52     struct VLANState *next;
  53     unsigned int nb_guest_devs, nb_host_devs;
  54     VLANPacket *send_queue;
  55     int delivering;
  56 };
  57
  58 VLANState *qemu_find_vlan(int id, int allocate);
  59 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
  60                                       const char *model,
  61                                       const char *name,
  62                                       NetCanReceive *can_receive,
  63                                       NetReceive *receive,
  64                                       NetReceiveIOV *receive_iov,
  65                                       NetCleanup *cleanup,
  66                                       void *opaque);
  67 void qemu_del_vlan_client(VLANClientState *vc);
  68 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque);
  69 int qemu_can_send_packet(VLANClientState *vc);
  70 ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
  71                           int iovcnt);
  72 ssize_t qemu_sendv_packet_async(VLANClientState *vc, const struct iovec *iov,
  73                                 int iovcnt, NetPacketSent *sent_cb);
  74 ssize_t qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
  75 ssize_t qemu_send_packet_raw(VLANClientState *vc, const uint8_t *buf, int size);
  76 ssize_t qemu_send_packet_async(VLANClientState *vc, const uint8_t *buf,
  77                                int size, NetPacketSent *sent_cb);
  78 void qemu_purge_queued_packets(VLANClientState *vc);
  79 void qemu_flush_queued_packets(VLANClientState *vc);
  80 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
  81 void qemu_check_nic_model(NICInfo *nd, const char *model);
  82 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
  83                                const char *default_model);
  84 void qemu_handler_true(void *opaque);
  85
  86 void do_info_network(Monitor *mon);
  87 int do_set_link(Monitor *mon, const char *name, const char *up_or_down);
  88
  89 void do_info_usernet(Monitor *mon);
  90
  91 int tap_has_vnet_hdr(void *opaque);
  92 void tap_using_vnet_hdr(void *opaque, int using_vnet_hdr);
  93
  94 /* NIC info */
  95
  96 #define MAX_NICS 8
  97 enum {
  98         NIC_NVECTORS_UNSPECIFIED = -1
  99 };
 100
 101 struct NICInfo {
 102     uint8_t macaddr[6];
 103     const char *model;
 104     const char *name;
 105     const char *devaddr;
 106     const char *id;
 107     VLANState *vlan;
 108     VLANClientState *vc;
 109     void *private;
 110     int used;
 111     int bootable;
 112     int nvectors;
 113 };
 114
 115 extern int nb_nics;
 116 extern NICInfo nd_table[MAX_NICS];
 117
 118 /* BT HCI info */
 119
 120 struct HCIInfo {
 121     int (*bdaddr_set)(struct HCIInfo *hci, const uint8_t *bd_addr);
 122     void (*cmd_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 123     void (*sco_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 124     void (*acl_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 125     void *opaque;
 126     void (*evt_recv)(void *opaque, const uint8_t *data, int len);
 127     void (*acl_recv)(void *opaque, const uint8_t *data, int len);
 128 };
 129
 130 struct HCIInfo *qemu_next_hci(void);
 131
 132 /* checksumming functions (net-checksum.c) */
 133 uint32_t net_checksum_add(int len, uint8_t *buf);
 134 uint16_t net_checksum_finish(uint32_t sum);
 135 uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
 136                              uint8_t *addrs, uint8_t *buf);
 137 void net_checksum_calculate(uint8_t *data, int length);
 138
 139 /* from net.c */
 140 extern const char *legacy_tftp_prefix;
 141 extern const char *legacy_bootp_filename;
 142
 143 int net_client_init(Monitor *mon, const char *device, const char *p);
 144 void net_client_uninit(NICInfo *nd);
 145 int net_client_parse(const char *str);
 146 void net_slirp_smb(const char *exported_dir);
 147 void net_slirp_hostfwd_add(Monitor *mon, const char *arg1,
 148                            const char *arg2, const char *arg3);
 149 void net_slirp_hostfwd_remove(Monitor *mon, const char *arg1,
 150                               const char *arg2, const char *arg3);
 151 void net_slirp_redir(const char *redir_str);
 152 void net_cleanup(void);
 153 void net_client_check(void);
 154 void net_set_boot_mask(int boot_mask);
 155 void net_host_device_add(Monitor *mon, const char *device, const char *opts);
 156 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device);
 157
 158 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
 159 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
 160 #ifdef __sun__
 161 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 162 #else
 163 #define SMBD_COMMAND "/usr/sbin/smbd"
 164 #endif
 165
 166 void qdev_get_macaddr(DeviceState *dev, uint8_t *macaddr);
 167 VLANClientState *qdev_get_vlan_client(DeviceState *dev,
 168                                       NetCanReceive *can_receive,
 169                                       NetReceive *receive,
 170                                       NetReceiveIOV *receive_iov,
 171                                       NetCleanup *cleanup,
 172                                       void *opaque);
 173
 174 #endif